class anchor_point:
    def __init__(self, **kwargs):
        self.name = kwargs.get("name", None)
        self.x = kwargs.get("x", None)
        self.y = kwargs.get("y", None)
        self.x1 = kwargs.get("x1", None)
        self.y1 = kwargs.get("y1", None)
        self.center_x = (self.x1 + self.x) / 2
        self.center_y = (self.y1 + self.y) / 2
